package com.anntly.netty.websocket;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;

import java.time.LocalDateTime;

/**
 * @Auther: 张文
 * @Date: 2020/6/7 16:27
 * @Description: TextWebSocketFrame 类型，表示一个文本帧 frame
 */
public class WebsocketHandler extends SimpleChannelInboundHandler <TextWebSocketFrame>{
    @Override
    protected void channelRead0(ChannelHandlerContext channelHandlerContext, TextWebSocketFrame textWebSocketFrame) throws Exception {
        System.out.println("服务器收到消息:"+textWebSocketFrame.text());
        // 回复消息
        channelHandlerContext.channel().writeAndFlush(new TextWebSocketFrame("服务器时间:"+ LocalDateTime.now()+":"+textWebSocketFrame.text()));
    }

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerAdded被调用"+ctx.channel().id().asLongText());
        System.out.println("handlerAdded被调用"+ctx.channel().id().asShortText());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerRemoved被调用"+ctx.channel().id().asLongText());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("发生异常"+cause.getMessage());
        ctx.close();
    }
}
